Use PHP 7 new features.

src/php/Avada/Form.php

@@ -46,6 +46,7 @@ public function init_hooks() {
 	 * @param array $params Parameters.
 	 *
 	 * @return void
+	 * @noinspection PhpUnusedParameterInspection
 	 */
 	public function form_after_open( $args, $params ) {
 		$this->form_id = isset( $params['id'] ) ? (int) $params['id'] : 0;
@@ -91,8 +92,8 @@ public function verify( $demo_mode ) {
 			[];
 
 		$form_data                   = wp_parse_args( str_replace( '&', '&', $form_data ) );
-		$hcaptcha_response           = isset( $form_data['h-captcha-response'] ) ? $form_data['h-captcha-response'] : '';
-		$hcaptcha_widget_id          = isset( $form_data['hcaptcha-widget-id'] ) ? $form_data['hcaptcha-widget-id'] : '';
+		$hcaptcha_response           = $form_data['h-captcha-response'] ?? '';
+		$hcaptcha_widget_id          = $form_data['hcaptcha-widget-id'] ?? '';
 		$_POST['hcaptcha-widget-id'] = $hcaptcha_widget_id;
 		// phpcs:disable WordPress.Security.NonceVerification.Missing, WordPress.Security.NonceVerification.Missing
 

src/php/BackInStockNotifier/Form.php

@@ -110,7 +110,7 @@ public function after_submit_button( $product_id, $variation_id ) {
 	 */
 	public function verify( $post_data, $rest_api ) {
 
-		$hcaptcha_response = isset( $post_data['h-captcha-response'] ) ? $post_data['h-captcha-response'] : '';
+		$hcaptcha_response = $post_data['h-captcha-response'] ?? '';
 
 		$result = hcaptcha_request_verify( $hcaptcha_response );
 

src/php/CF7/CF7.php

@@ -109,7 +109,7 @@ public function cf7_hcaptcha_shortcode( $attr = [] ) {
 				'size'    => $hcaptcha_size, // The hCaptcha widget size.
 				'id'      => [
 					'source'  => HCaptcha::get_class_source( __CLASS__ ),
-					'form_id' => isset( $attr['form_id'] ) ? $attr['form_id'] : 0,
+					'form_id' => $attr['form_id'] ?? 0,
 				], // hCaptcha widget id.
 				/**
 				 * Example of id:
@@ -125,7 +125,7 @@ public function cf7_hcaptcha_shortcode( $attr = [] ) {
 		if ( $args['id'] ) {
 			$id            = (array) $args['id'];
 			$id['source']  = isset( $id['source'] ) ? (array) $id['source'] : [];
-			$id['form_id'] = isset( $id['form_id'] ) ? $id['form_id'] : 0;
+			$id['form_id'] = $id['form_id'] ?? 0;
 
 			/**
 			 * Filters the protection status of a form.
@@ -191,7 +191,7 @@ public function verify_hcaptcha( $result, $tag ) {
 		}
 
 		$data           = $submission->get_posted_data();
-		$response       = isset( $data['h-captcha-response'] ) ? $data['h-captcha-response'] : '';
+		$response       = $data['h-captcha-response'] ?? '';
 		$captcha_result = hcaptcha_request_verify( $response );
 
 		if ( null !== $captcha_result ) {
@@ -245,7 +245,7 @@ public function enqueue_scripts() {
 	}
 
 	/**
-	 * Add form_id to cf7_hcaptcha shortcode if it does not exists.
+	 * Add form_id to cf7_hcaptcha shortcode if it does not exist.
 	 * Replace to proper form_id if needed.
 	 *
 	 * @param string $output  CF7 form output.
@@ -273,7 +273,7 @@ private function add_form_id_to_cf7_hcap_shortcode( $output, $form_id ) {
 		array_walk(
 			$atts,
 			static function ( &$value, $key ) {
-				$value = "{$key}=\"{$value}\"";
+				$value = "$key=\"$value\"";
 			}
 		);
 

src/php/Divi/Contact.php

@@ -144,7 +144,7 @@ public function verify( $return, $tag, $attr, $m ) {
 			if ( $current_form_fields ) {
 				$fields_data_json             = htmlspecialchars_decode( str_replace( '\\', '', $current_form_fields ) );
 				$fields_data_array            = json_decode( $fields_data_json, true );
-				$fields_data_array            = null === $fields_data_array ? [] : $fields_data_array;
+				$fields_data_array            = $fields_data_array ?? [];
 				$fields_data_array            = array_filter(
 					$fields_data_array,
 					static function ( $item ) {

src/php/ElementorPro/HCaptchaHandler.php

@@ -287,7 +287,7 @@ public function render_field( $item, $item_index, $widget ) {
 		$this->add_render_attributes( $item, $item_index, $widget );
 
 		$data    = $widget->get_raw_data();
-		$form_id = isset( $data['settings']['form_id'] ) ? $data['settings']['form_id'] : 0;
+		$form_id = $data['settings']['form_id'] ?? 0;
 
 		$args = [
 			'id' => [

src/php/FluentForm/Form.php

@@ -111,8 +111,8 @@ public function verify( $errors, $data, $form, $fields ) {
 			return $errors;
 		}
 
-		$hcaptcha_response           = isset( $data['h-captcha-response'] ) ? $data['h-captcha-response'] : '';
-		$_POST['hcaptcha-widget-id'] = isset( $data['hcaptcha-widget-id'] ) ? $data['hcaptcha-widget-id'] : '';
+		$hcaptcha_response           = $data['h-captcha-response'] ?? '';
+		$_POST['hcaptcha-widget-id'] = $data['hcaptcha-widget-id'] ?? '';
 		$error_message               = hcaptcha_request_verify( $hcaptcha_response );
 
 		if ( null !== $error_message ) {

src/php/FormidableForms/Form.php

@@ -130,6 +130,7 @@ public function add_captcha( $html, $field, $atts ) {
 	 * @param array    $post            wp_unslash( $_POST ) content.
 	 *
 	 * @return bool
+	 * @noinspection PhpUnusedParameterInspection
 	 */
 	public function prevent_native_validation( $is_field_hidden, $field, $post ) {
 		if ( 'captcha' !== $field->type ) {

src/php/GravityForms/Form.php

@@ -44,7 +44,7 @@ public function add_captcha( $button_input, $form ) {
 			'auto'   => true,
 			'id'     => [
 				'source'  => HCaptcha::get_class_source( __CLASS__ ),
-				'form_id' => isset( $form['id'] ) ? $form['id'] : 0,
+				'form_id' => $form['id'] ?? 0,
 			],
 		];
 

src/php/Helpers/HCaptcha.php

@@ -70,8 +70,8 @@ public static function form_display( $args = [] ) {
 
 		if ( $args['id'] ) {
 			$id            = (array) $args['id'];
-			$id['source']  = isset( $id['source'] ) ? (array) $id['source'] : [];
-			$id['form_id'] = isset( $id['form_id'] ) ? $id['form_id'] : 0;
+			$id['source']  = (array) ( $id['source'] ?? [] );
+			$id['form_id'] = $id['form_id'] ?? 0;
 
 			/**
 			 * Filters the protection status of a form.

src/php/Main.php

@@ -179,7 +179,7 @@ public function init_hooks() {
 	 */
 	public function get( $class ) {
 
-		return isset( $this->loaded_classes[ $class ] ) ? $this->loaded_classes[ $class ] : null;
+		return $this->loaded_classes[ $class ] ?? null;
 	}
 
 	/**

src/php/Migrations/Migrations.php

@@ -224,9 +224,7 @@ private function migrate_200() {
 
 			list( $new_option_key, $new_option_value ) = $new_option_name;
 
-			$new_options[ $new_option_key ] = isset( $new_options[ $new_option_key ] ) ?
-				$new_options[ $new_option_key ] :
-				[];
+			$new_options[ $new_option_key ] = $new_options[ $new_option_key ] ?? [];
 
 			if ( 'on' === $old_option ) {
 				$new_options[ $new_option_key ][] = $new_option_value;

src/php/NF/Fields.php

@@ -68,7 +68,7 @@ public function __construct() {
 	 * @return null|string
 	 */
 	public function validate( $field, $data ) {
-		$value = isset( $field['value'] ) ? $field['value'] : '';
+		$value = $field['value'] ?? '';
 
 		return hcaptcha_request_verify( $value );
 	}

src/php/PaidMembershipsPro/Checkout.php

@@ -8,8 +8,6 @@
 namespace HCaptcha\PaidMembershipsPro;
 
 use HCaptcha\Helpers\HCaptcha;
-use WP_Error;
-use WP_User;
 
 /**
  * Class Checkout.
@@ -61,6 +59,7 @@ public function add_captcha() {
 	 * Verify login form.
 	 *
 	 * @return void
+	 * @noinspection PhpUndefinedFunctionInspection
 	 */
 	public function verify() {
 		global $pmpro_msg, $pmpro_msgt;

src/php/Settings/Abstracts/SettingsBase.php

@@ -570,8 +570,8 @@ protected function get_names_from_referer() {
 		$args  = $this->wp_parse_str( $query );
 
 		return [
-			'page' => isset( $args['page'] ) ? $args['page'] : null,
-			'tab'  => isset( $args['tab'] ) ? $args['tab'] : null,
+			'page' => $args['page'] ?? null,
+			'tab'  => $args['tab'] ?? null,
 		];
 	}
 
@@ -1033,7 +1033,7 @@ public function field_callback( array $arguments ) {
 			'table'    => 'print_table_field',
 		];
 
-		$type = isset( $arguments['type'] ) ? $arguments['type'] : '';
+		$type = $arguments['type'] ?? '';
 
 		if ( ! array_key_exists( $type, $types ) ) {
 			return;

src/php/Settings/Integrations.php

@@ -416,14 +416,14 @@ public function sort_fields( $fields ) {
 		uasort(
 			$fields,
 			static function ( $a, $b ) {
-				$a_disabled = isset( $a['disabled'] ) ? $a['disabled'] : false;
-				$b_disabled = isset( $b['disabled'] ) ? $b['disabled'] : false;
+				$a_disabled = $a['disabled'] ?? false;
+				$b_disabled = $b['disabled'] ?? false;
 
-				$a_label = isset( $a['label'] ) ? strtolower( $a['label'] ) : '';
-				$b_label = isset( $b['label'] ) ? strtolower( $b['label'] ) : '';
+				$a_label = strtolower( $a['label'] ?? '' );
+				$b_label = strtolower( $b['label'] ?? '' );
 
 				if ( $a_disabled === $b_disabled ) {
-					return strcmp( $a_label, $b_label );
+					return $a_label <=> $b_label;
 				}
 
 				if ( ! $a_disabled && $b_disabled ) {

src/php/Subscriber/Form.php

@@ -67,6 +67,7 @@ public function add_captcha( $content ) {
 	 * @param bool $check_result Check result.
 	 *
 	 * @return bool|string
+	 * @noinspection NullCoalescingOperatorCanBeUsedInspection
 	 */
 	public function verify( $check_result ) {
 		$error_message = hcaptcha_get_verify_message( self::NAME, self::ACTION );

src/php/WPDiscuz/Base.php

@@ -7,9 +7,6 @@
 
 namespace HCaptcha\WPDiscuz;
 
-use HCaptcha\Helpers\HCaptcha;
-use WP_User;
-
 /**
  * Class Base.
  */

src/php/WPDiscuz/Comment.php

@@ -35,14 +35,15 @@ public function init_hooks() {
 	 * @param WP_User|false $current_user   Current user.
 	 *
 	 * @return string
+	 * @noinspection PhpUnusedParameterInspection
 	 */
 	public function add_hcaptcha( $output, $comments_count, $current_user ) {
 		global $post;
 
 		$args = [
 			'id' => [
 				'source'  => HCaptcha::get_class_source( static::class ),
-				'form_id' => $post ? $post->ID : 0,
+				'form_id' => $post->ID ?? 0,
 			],
 		];
 

src/php/WPDiscuz/Subscribe.php

@@ -8,7 +8,6 @@
 namespace HCaptcha\WPDiscuz;
 
 use HCaptcha\Helpers\HCaptcha;
-use WP_User;
 
 /**
  * Class Subscribe.
@@ -39,7 +38,7 @@ public function add_hcaptcha() {
 		$args = [
 			'id' => [
 				'source'  => HCaptcha::get_class_source( static::class ),
-				'form_id' => $post ? $post->ID : 0,
+				'form_id' => $post->ID ?? 0,
 			],
 		];
 

src/php/includes/request.php

@@ -188,7 +188,7 @@ function hcaptcha_request_verify( $hcaptcha_response ) {
 		$error_codes = [];
 
 		if ( ! isset( $body['success'] ) || true !== (bool) $body['success'] ) {
-			$error_codes = isset( $body['error-codes'] ) ? $body['error-codes'] : [ 'fail' ];
+			$error_codes = $body['error-codes'] ?? [ 'fail' ];
 			$result      = isset( $body['error-codes'] ) ? hcap_get_error_message( $body['error-codes'] ) : $fail_message;
 		}